CN207554301U - air suction silencer of refrigeration compressor - Google Patents

Abstract

A kind of air suction silencer of refrigeration compressor, including housing, being formed in housing has partition board, partition board extends to the rear side inner wall of housing from the front inner wall of housing, first, second silencing cavity to communicate with each other is separated out in housing chamber by the partition board, the left end of the front side outer wall of housing is extended with outlet nozzle, and outlet nozzle is communicated with the second silencing cavity, and housing locating piece has been formed with space state on the outer wall of housing and around the surrounding of housing；Cap, outer wall surrounding and is being formed cap locating piece with the corresponding position of housing locating piece with space state, and cap locating piece coordinates with housing locating piece, opens up air admission hole on cap right side wall, air admission hole is communicated with the first silencing cavity, feature：Outer wall edge position of the cap towards the side of housing and the position corresponding to housing upper edge, which are formed, has housing upper edge to seal embeded slot, and housing upper edge sealing embeded slot coordinates with the sealing of housing upper edge.Significantly reduce noise；Reduce inspiratory resistance, reduce volume, improve packaging efficiency.

Description

Air suction silencer of refrigeration compressor

Technical field

The utility model belongs to refrigeration compressor accessory technical field, and in particular to a kind of refrigeration compressor air suction noise reduction Device.

Background technology

As is known in the industry, hermetically sealed refrigerating compressor unit would generally be installed inside it there are one air suction silencer, freeze Cylinder sucks refrigerant gas by air suction silencer during compressor operating, was both played and weakened inside compressor by air suction silencer The heat effect of adstante febre refrigerant, and play to reduce and noise caused by pressure fluctuation and shake during refrigerant gas flow It is dynamic, so as to help to reduce the running noises of compressor, while the working efficiency of compressor can be effectively improved, that is, improve system The Energy Efficiency Ratio of cold compressor（COP）.It follows that air suction silencer is the essential of current reciprocating hermetic refrigeration compressor And be one of more important accessory.

There is aforementioned good effect, therefore paid close attention to always by industry, and utilize just because of air suction silencer The technical information that various technological means use the anti-acoustic capability for improving air suction silencer is no lack of is seen in the literature, can be by this It is not limited to open source literature confirmation exemplified below：Chinese patent Authorization Notice No. CN2663663Y recommendations have " muffler shell " For refrigeration compressor, which solves the sealing problem between upper and lower casing, has for the COP values for improving aforementioned Contribute and can be with noise reduction；" muffler " that CN2705629Y is provided is equally to the sealing problem of the muffler in prior art It is improved, there is the benefits of playing the same tune on different musical instruments with aforementioned CN2663663Y；" the sealed refrigeration compression that CN2733037Y is introduced The characteristics of machine air suction silencer " is that hook-type linker is set in lower anechoic chamber and is separated into lower anechoic chamber by longitudinal baffle 1:The cavity volume of 3 two not co-contents, the patent is helpful for reducing air suction and noise band frequency, but whole noise reduction is still not Sufficiently achieve it is intended that degree；The structure of " New Energy-saving Deadender Of Closed Refrigerant Motor-compressor " that CN2833127Y is disclosed Due to similar to aforementioned CN2733037Y, technique effect is also similar；CN2886124Y disclose " refrigeration compressor is straight with half Connect air suction silencer " for facilitating installation helpful, and probability of failure can be reduced in the transportational process with refrigeration equipment； " air suction sound eliminator for refrigeration compressor " that CN201165957Y is recommended solves the problems, such as to prevent foreign matter from entering compresser cylinder.

Also, invention patent mandate notification number CN101487461B（The cap of air suction silencer of refrigeration compressor and housing Fit structure）、CN101545472B（The air suction silencer of refrigeration compressor）And CN101545473B（The air-breathing of refrigeration compressor Muffler）This three patents are proposed that wherein CN101487461B solves the shell of air suction silencer by the preceding title of the applicant Cover housing between uneven and burr the problems such as, make the two combination reach ultimate attainment degree；CN101545472B is ingenious Ground solves the problems, such as the shield of covering to strainer, the objective technique effect for embodying the record of Instructions Page 3 15-18 rows； Lid is isolated by being added between housing and cap in CN101545473B, and is covered in isolation and be designed with cofferdam, and strainer is consolidated It is scheduled on cofferdam, so as to which objective embody such as avoids sundries from being damaged through strainer by what Instructions Page 3 10-14 rows were concluded And the technique effects such as compressor, protection compresser cylinder.

It is every to be related to being intended to reduce in the technology contents for being not limited to air suction silencer of refrigeration compressor exemplified above The technical solution of noise can substantially be summarized as the following aspects：First, increase the quantity of anechoic chamber；Second is that lengthen suction line Length；Third, reduce the effective area of suction line；Fourth, the suction line such as international publication number using complicated shape " air-breathing of refrigeration compressor is used for disclosed in the Chinese invention patent application publication number CN101171424A of W02006/116830 Muffler "；Fifth, anechoic chamber will be increased with lengthening suction line and storage and taking（I.e. and storage is used in combination）.But these technological means While muffler anti-acoustic capability is enhanced, the inspiratory resistance of muffler is also increased, so as to reduce the fortune of compressor complete machine Row performance.

And then as is known in the industry, to drop whether no-float between the cap and housing of air suction silencer of refrigeration compressor The quality for effect of making an uproar can have an impact.The fit form of aforementioned cap and housing can be summarized as following three types by prior art Type：First, buckle type；It is second is that plastic sealed；Third, welded type.Cap and housing cooperation are difficult to reach the two with snap-wise Between sealing requirements, be affected to noise reduction generation；Although cap and housing cooperation can be embodied in a manner of plastic packaging Good sealing performance, but original size of muffler is changed, and not only needs to increase raw and auxiliary material, but also need volume in addition Outer increase one set of die；Although being coordinated cap and housing with welding manner equally has excellent sealing effect, and will not Change original size of housing and cap, but the pressure born i.e. bearing capacity is relatively fragile, used in refrigeration compressor Easily occurs the problem of commissure swelling cracking in the process, in view of this, it is necessary to be further improved, for this purpose, the applicant makees Beneficial design repeatedly forms technical solution described below, and in the case where taking secrecy provision at this finally The test center of applicant is tested, and is as a result proved to be practicable.

Invention content

The task of the utility model be to provide a kind of close fit effect for helping to promote between cap and housing and It uses and significantly reduces noise, be conducive to avoid increasing suction line and using and reduce inspiratory resistance, be beneficial to easily and quickly Cap and housing are assembled and use the air suction silencer of refrigeration compressor for embodying ideal packaging efficiency.

What the task of the utility model was performed by, a kind of air suction silencer of refrigeration compressor, including a housing, Being formed in housing has a partition board, which extends to the rear side inner wall of housing from the front inner wall of housing, by the partition board in shell The first silencing cavity positioned at the right side of partition board and the second silencing cavity positioned at the left side of partition board are separated out in the housing chamber of body, this First, the second silencing cavity communicates with each other, and is extended with an outlet nozzle in the left end of the front side outer wall of housing, the outlet nozzle and the second noise reduction Chamber communicates, and housing locating piece has been formed with space state on the outer wall of housing and around the surrounding of housing；One cap, at this The outer wall surrounding of cap and cap locating piece is being formed with space state with the housing locating piece corresponding position, it should Cap locating piece and housing locating piece cooperate, and an air admission hole is offered on the cap right side wall of cap, the air admission hole with First silencing cavity communicates, be characterized in that the cap towards the side of the housing outer wall edge position simultaneously And being formed in the position of the housing upper edge corresponding to housing has a housing upper edge to seal embeded slot, housing upper edge sealing embeded slot It seals and coordinates with housing upper edge.

In a specific embodiment of the utility model, in the housing and in the position corresponding to the partition board Putting composition has an air inlet seat, and the right end that the air inlet seat and partition board form cross false relation and the air inlet seat probes into described the One silencing cavity, and right end probes into second silencing cavity, offers one in the middle position of the length direction of the air inlet seat and disappears Sound chamber venthole, the silencing cavity venthole are penetrated through from the left end of air inlet seat to right end, by the silencing cavity venthole by described First, the second silencing cavity penetrates through each other, and the silencing cavity venthole is corresponding with the air admission hole.

In another specific embodiment of the utility model, on the right side wall of the housing and positioned at right side wall Middle part form there is a cap right side wall extension board to insert embedding mating cavity, inserting embedding mating cavity corresponding to the cap right side wall extension board Accent position form have chimeric side；A cap right side wall has been extended downwardly in the middle part of the cap right side wall of the cap to prolong Plate is stretched, which inserts embedding mating cavity with cap right side wall extension board and match, and in the cap right side wall The fascia edge position of extension board, which is formed, chimeric side caulking groove, which seals embeded slot phase with the housing upper edge It is logical, it is described it is chimeric while with it is chimeric while caulking groove scarf, the air admission hole communicated with first silencing cavity is opened in the cap On right side wall extension board.

In another specific embodiment of the utility model, the cap right side wall extension board insert embedding mating cavity with And the shape of the cap right side wall extension board be the V-shaped of mutual cooperation and in cap right side wall extension board back to institute The side for stating the first silencing cavity is extended with an air guide port, and the air guide port is corresponding with the air admission hole.

In another specific embodiment of the utility model, on the cap right side wall and towards described first The side of silencing cavity, which is formed, has filter screen to insert embedding seat, which, which inserts embedding seat tool, a pair of of filter screen caulking groove, at this to filtering Net caulking groove is interleave embedded with a filter screen, and the filter screen is corresponding with the air admission hole.

In the utility model there are one in specific embodiment, the cap towards the side of the housing and Being formed in the position corresponding to the partition board has a partition board caulking groove, the upper edge of the length direction of partition board and the partition board caulking groove scarf.

In the utility model more and in a specific embodiment, on the partition board offering one drops down oilhole.

The utility model so that in a specific embodiment, on the front side outer wall of the housing and in correspondence The position of the outlet nozzle, which is formed, an outlet nozzle interface resigning chamber, in the position composition corresponding to the outlet nozzle interface resigning chamber There is an outlet nozzle interface, which extends in second silencing cavity and in the centre bit of the outlet nozzle interface Putting composition has outlet nozzle venthole, which communicates with the second silencing cavity and communicated with outlet nozzle, and the outlet Mouth is formed on outlet nozzle interface.

The utility model again more and in a specific embodiment, in the cavity wall of the outlet nozzle interface resigning chamber An oil dripping hole communicated with second silencing cavity is offered, and the oil dripping hole is also communicated with the external world.

The utility model again so that a specific embodiment in, the housing locating piece include positioning card base, Positioning convex platform and positioning deck, positioning card base with space state be formed in the housing forward and backward outer wall and left outside wall it is upper Portion, the quantity of positioning convex platform have a pair and are formed in the top of the right outer wall of housing, position the quantity of deck as one and The lower part of the middle position of the right outer wall of housing is formed in, the cap locating piece includes the embedding seat of positioning card base, positioning convex platform Foot and positioning deck button foot are detained, the positioning embedding seat of card base is formed in the forward and backward outer wall of the cap and left outside wall with space state Top, the position of the embedding seat of positioning card base with it is described positioning card base it is corresponding and with positioning card base card match, positioning convex platform button The quantity of foot has a pair and is formed in the top of the right side wall of cap, the position to positioning convex platform button foot and described a pair Positioning convex platform is corresponding and with a pair of of positioning convex platform scarf, and the quantity for positioning deck button foot is one and is formed in the cap The lower part of right side wall extension board, the positioning deck button foot are matched with the positioning deck.

Technical solution provided by the utility model has technical effect that：Due to the outer wall in cap towards the side of housing Edge position and being formed in the position of the housing upper edge corresponding to housing has a housing upper edge to seal caulking groove, thus works as shell After in body upper edge insertion housing upper edge sealing caulking groove, cap can be fully demonstrated and imitated with the excellent close fit of housing between the two Fruit helps to significantly reduce noise；Due to having abandoned interminable suction line relative to prior art, thus it can both reduce air-breathing Resistance, and overall structure can be reduced, meet the awkward requirements of installation space on refrigeration compressor, and can also be significantly simple Change structure；It is rational in infrastructure due to housing locating piece and cap locating piece, thus can easily and quickly assemble the two, significantly Improve packaging efficiency.

Description of the drawings

Fig. 1 is the example structure figure of the utility model.

Fig. 2 is the inside schematic diagram of housing right side wall shown in FIG. 1.

Fig. 3 is the bottom schematic view of housing shown in FIG. 1.

Specific embodiment

In order to which the technical essence of the utility model and advantageous effect is more clearly understood, applicant is below with reality The mode for applying example elaborates, but to the description of embodiment is not the limitation to the utility model, any foundation The made only formal but not substantive equivalent transformation of the utility model design is regarded as the utility model Technical solution scope.

The concept of every directionality for being related to upper, lower, left, right, front and rear or directionality is in the following description On the basis of location status shown in FIG. 1, thus the spy to technical solution provided by the utility model cannot be understood as It does not limit.

Fig. 1 is referred to, is shown by the moulding housing 1 of plastics, being formed in housing 1 has a partition board 11, should The front inner wall of partition board 11 from housing 1 extends to the rear side inner wall of housing 1, divides in the housing chamber of housing 1 by the partition board 11 The first silencing cavity 12 positioned at the right side of partition board 11 and the second silencing cavity 13 positioned at the left side of partition board 11 are separated out, this first, the Two silencing cavities 12,13 communicate with each other, and the first silencing cavity 12 is significantly less than the second silencing cavity 13, specifically, the first silencing cavity 12 Volume be about the second silencing cavity volume 1/3rd or so（But it is not limited thereto）.In the front side outer wall of housing 1 Left end is extended with an outlet nozzle 14, which communicates with the second silencing cavity 13, on the outer wall of housing 1 and around housing 1 surrounding has been formed housing locating piece 15 with space state；Show a cap 2, the cap 2 outer wall surrounding and with Aforementioned 15 corresponding position of housing locating piece has been formed cap locating piece 21 with space state, the cap locating piece 21 and housing Locating piece 15 cooperates, and an air admission hole 221 is offered on the cap right side wall 22 of cap 2, the air admission hole 221 with it is aforementioned First silencing cavity 12 communicates.

Technical essential as technical solution provided by the utility model：In aforementioned cap 2 towards the side of aforementioned housing 1 （I.e. in the lower part of cap 2）Outer wall edge position and the position of the housing upper edge 16 corresponding to housing 1 form have One housing upper edge seals embeded slot 23, and housing upper edge sealing embeded slot 3 coordinates with the sealing of housing upper edge 16, that is to say, that housing Upper edge 16 is inserted into housing upper edge sealing embeded slot 23.

Continue to see Fig. 1, forming in aforementioned housing 1 and in the position corresponding to aforementioned separator plate 11 has an air inlet seat 17, The right end that the air inlet seat 17 forms cross false relation and the air inlet seat 17 with partition board 11 probes into the first aforementioned silencing cavity 12, And right end probes into the second aforementioned silencing cavity 13, offering a silencing cavity in the middle position of the length direction of the air inlet seat 17 leads to Stomata 171, the left end of silencing cavity venthole 171 from the air inlet seat 17 are penetrated through to right end, by the silencing cavity venthole 171 by before First, second silencing cavity 12,13 is stated to penetrate through each other, and the silencing cavity venthole 171 is corresponding with aforementioned air admission hole 221.

In the present embodiment, the center of air admission hole 221 and the center of silencing cavity venthole 171 are located on coaxial line.

There is a cap right side wall extension board to insert on the right side wall of aforementioned housing 1 and positioned at the middle part of right side wall composition embedding Mating cavity 18, being formed in the position that the accent of embedding mating cavity 18 is inserted corresponding to the cap right side wall extension board has chimeric side 181, should Chimeric side 181 is engaged with aforementioned housing upper edge 16；One has been extended downwardly at the middle part of the cap right side wall 22 of aforementioned cap 2 Cap right side wall extension board 222, the cap right side wall extension board 222 insert embedding mating cavity 18 with cap right side wall extension board and match It closes, and has chimeric side caulking groove 2221 in the fascia edge position of the cap right side wall extension board 222 composition, the chimeric side caulking groove 2221 communicate with aforementioned housing upper edge sealing embeded slot 23, it is aforementioned it is chimeric while 181 with it is chimeric while 2221 scarf of caulking groove, it is and preceding The aforementioned air admission hole 221 that the first silencing cavity 12 communicates is stated to be opened on the cap right side wall extension board 222.

As shown in Figure 1, aforementioned cap right side wall extension board inserts embedding mating cavity 18 and the extension of aforementioned cap right side wall The shape of plate 222 generally in mutual cooperation V-shaped and in cap right side wall extension board 222 back to aforementioned first silencing cavity 12 side is extended with an air guide port 2222（Also can claim " remittance gas port ", it is the same below）, the air guide port 2222 and aforementioned air admission hole 221 is corresponding.

It refers to Fig. 2 and combines Fig. 1, the position of cap right side wall 22 illustrated in Fig. 2 is inverted relative to Fig. 1 180 °, as shown in the Fig. 2, forming on aforementioned cap right side wall 22 and towards the side of aforementioned first silencing cavity 12 has filtering Net inserts embedding seat 223, which, which inserts embedding seat 223, has a pair of of filter screen caulking groove 2231, at this to filter screen caulking groove 2231 Interleave embedded with a filter screen 3, the filter screen 3 is corresponding with aforementioned air admission hole 221.Since the function of filter screen belongs to existing Technology, thus it will not be described by applicant.

Continue to see Fig. 1, in aforementioned cap 2 towards the side under the side of aforementioned housing 1 i.e. direction and corresponding to before The position composition for stating partition board 11 has a partition board caulking groove 24, the upper edge of the length direction of partition board 11 and 24 scarf of partition board caulking groove. One is offered in aforementioned separator plate 11 and drops down oilhole 111（Also can claim " oil dripping hole "）, so that You Shang follow this and drop down oilhole on partition board 11 111 enter aforementioned silencing cavity venthole 171.

Fig. 3 is referred to and with reference to Fig. 1, on the front side outer wall of aforementioned housing 1 and in the aforementioned outlet nozzle 14 of correspondence Position, which is formed, an outlet nozzle interface resigning chamber 19, and being formed in the position corresponding to the outlet nozzle interface resigning chamber 19 has an outlet Mouth interface 191, the outlet nozzle interface 191 are extended in the second aforementioned silencing cavity 13 and in the outlet nozzle interface 191 Heart position, which is formed, outlet nozzle venthole 1911, which is communicated with the second silencing cavity 13 and and outlet nozzle 14 communicate, and the outlet nozzle 14 is formed on outlet nozzle interface 191.Preferably, the center of aforementioned outlet nozzle venthole 1911 It is located in same level with the center of aforementioned silencing cavity venthole 171（It is in same level）.

As shown in Fig. 1 and Fig. 3, one and aforementioned second noise reduction are offered in the cavity wall of aforementioned outlet nozzle interface resigning chamber 19 The oil dripping hole 192 that chamber 13 communicates, and the oil dripping hole 192 is also communicated with the external world.

Please emphasis referring to Fig. 1, aforementioned housing locating piece 15 includes positioning card base 151, positioning convex platform 152 and positioning deck 153, positioning card base 151 is formed in the forward and backward outer wall of aforementioned housing 1 and the top of left outside wall, positioning convex platform with space state 152 quantity has a pair and is formed in the top of the right outer wall of housing 1, and the quantity of positioning deck 153 for one and is formed In the lower part of the middle position of the right outer wall of housing 1, aforementioned cap locating piece 21 includes the embedding seat 211 of positioning card base, convex Platform button foot 212 and positioning deck button foot 213, the positioning embedding seat 211 of card base are formed in the forward and backward outer of aforementioned cap 2 with space state The top of wall and left outside wall, the position of the embedding seat 211 of the positioning card base is corresponding with aforementioned positioning card base 151 and blocks with positioning The card of foot 151 is matched, and the quantity of positioning convex platform button foot 212 has a pair and is formed in the top of the right side wall of cap 2, this is to convex The position of platform button foot 212 it is corresponding with aforementioned a pair of of positioning convex platform 152 and with a pair of of 152 scarf of positioning convex platform, positioning card The quantity of seat button foot 213 is one and is formed in the lower part of aforementioned cap right side wall extension board 222, the positioning deck button foot 213 match with aforementioned positioning deck 153.

Applicant it should be noted that：If aforementioned housing locating piece 15 is transferred to cap 2, while by cap locating piece 21 are transferred to housing 1, i.e. the position of the two is exchanged, then should be considered as equivalent variations and still be belonged to disclosed in the utility model Technical connotation scope.

Since the operation principle of air suction silencer of refrigeration compressor belongs to prior art, thus applicant only makees letter below Illustrate.When refrigeration compressor works, refrigerant gas enters the first silencing cavity 12 by air admission hole 221, then successively through air inlet seat Silencing cavity venthole 171, the second silencing cavity 13 and outlet nozzle venthole 1911 on 17, then refrigerant compression is introduced by outlet nozzle 14 Machine.

In conclusion technical solution provided by the utility model comprehensively overcomes the shortcoming in prior art, complete Invention task, the technique effect described in the objective technical effect column for embodying applicant and being mentioned above, thus can yet be regarded as and be One ultimate attainment technical solution.

Claims (10)

1. a kind of air suction silencer of refrigeration compressor, including a housing (1), being formed in housing (1) has a partition board (11), should be every The front inner wall of plate (11) from housing (1) extends to the rear side inner wall of housing (1), by shell of the partition board (11) in housing (1) The first silencing cavity (12) positioned at the right side of partition board (11) and the second noise reduction positioned at the left side of partition board (11) are separated out in body cavity Chamber (13), first, second silencing cavity (12,13) communicate with each other, and an outlet is extended in the left end of the front side outer wall of housing (1) Mouth (14), the outlet nozzle (14) are communicated with the second silencing cavity (13), on the outer wall of housing (1) and around the four of housing (1) Week has been formed housing locating piece (15) with space state；One cap (2), the cap (2) outer wall surrounding and with it is described Housing locating piece (15) corresponding position has been formed cap locating piece (21) with space state, the cap locating piece (21) and shell Body locating piece (15) cooperates, and an air admission hole (221), the air admission hole are offered on the cap right side wall (22) of cap (2) (221) it is communicated with first silencing cavity (12), it is characterised in that in the cap (2) towards the side of the housing (1) Outer wall edge position and the position of the housing upper edge (16) corresponding to housing (1) form have a housing upper edge sealing Embeded slot (23), housing upper edge sealing embeded slot (23) coordinate with housing upper edge (16) sealing.

2. air suction silencer of refrigeration compressor according to claim 1, it is characterised in that in the housing (1) and There is an air inlet seat (17) corresponding to the position composition of the partition board (11), which forms cross with partition board (11) and interlock The right end of relationship and the air inlet seat (17) probes into first silencing cavity (12), and right end probes into second silencing cavity (13), a silencing cavity venthole (171), silencing cavity ventilation are offered in the middle position of the length direction of the air inlet seat (17) The left end of hole (171) from air inlet seat (17) is penetrated through to right end, and described first, second is disappeared by the silencing cavity venthole (171) Sound chamber (12,13) penetrates through each other, and the silencing cavity venthole (171) is corresponding with the air admission hole (221).

3. air suction silencer of refrigeration compressor according to claim 1, it is characterised in that the right side wall in the housing (1) Upper and positioned at right side wall middle part, which is formed, has a cap right side wall extension board to insert embedding mating cavity (18), corresponding to the cap right side The position composition that side wall extension board inserts the accent of embedding mating cavity (18) has chimeric side (181)；On the right side of the cap of the cap (2) A cap right side wall extension board (222) is extended downwardly in the middle part of wall (22), the cap right side wall extension board (222) is right with cap Side wall extension board is inserted embedding mating cavity (18) and is matched, and in the fascia edge position structure of the cap right side wall extension board (222) Into there is chimeric side caulking groove (2221), which communicates with the housing upper edge sealing embeded slot (23), institute State it is chimeric while (181) with it is chimeric while caulking groove (2221) scarf, the air admission hole communicated with first silencing cavity (12) (221) it is opened on the cap right side wall extension board (222).

4. air suction silencer of refrigeration compressor according to claim 3, it is characterised in that the cap right side wall extension The shape that plate inserts embedding mating cavity (18) and the cap right side wall extension board (222) be the V-shaped of mutual cooperation and An air guide port (2222) is extended in the side of cap right side wall extension board (222) back to first silencing cavity (12), this is led Gas port (2222) is corresponding with the air admission hole (221).

5. air suction silencer of refrigeration compressor according to claim 1, it is characterised in that in the cap right side wall (22) Upper and towards first silencing cavity (12) side composition has filter screen to insert embedding seat (223), which inserts embedding seat (223) With a pair of of filter screen caulking groove (2231), in the interleaving embedded with a filter screen (3), the mistake to filter screen caulking groove (2231) Strainer (3) is corresponding with the air admission hole (221).

6. air suction silencer of refrigeration compressor according to claim 1, it is characterised in that in the cap (2) described in The side of housing (1) and corresponding to the partition board (11) position form have a partition board caulking groove (24), the length of partition board (11) Spend the upper edge and partition board caulking groove (24) scarf in direction.

7. according to the air suction silencer of refrigeration compressor described in claims 1 or 2 or 6, it is characterised in that in the partition board (11) On offer one and drop down oilhole（111）.

8. air suction silencer of refrigeration compressor according to claim 1, it is characterised in that outside the front side of the housing (1) Forming on wall and in the position of the correspondence outlet nozzle (14) has an outlet nozzle interface resigning chamber (19), corresponding to the outlet The position of mouth interface resigning chamber (19), which is formed, an outlet nozzle interface (191), which extends to described the Forming in two silencing cavities (13) and in the center of the outlet nozzle interface (191) has outlet nozzle venthole (1911), this goes out Gas nozzle venthole (1911) is communicated with the second silencing cavity (13) and is communicated with outlet nozzle (14), and the outlet nozzle (14) is formed in On outlet nozzle interface (191).

9. air suction silencer of refrigeration compressor according to claim 8, it is characterised in that step down in the outlet nozzle interface An oil dripping hole (192) communicated with second silencing cavity (13), and the oil dripping hole (192) are offered in the cavity wall of chamber (19) Also communicated with the external world.

10. air suction silencer of refrigeration compressor according to claim 3, it is characterised in that the housing locating piece (15) Including positioning card base (151), positioning convex platform (152) and positioning deck (153), positioning card base (151) is formed in space state The forward and backward outer wall of the housing (1) and the top of left outside wall, the quantity of positioning convex platform (152) have a pair and are formed in shell The top of the right outer wall of body (1), the quantity of positioning deck (153) are one and are formed in the placed in the middle of the right outer wall of housing (1) The lower part of position, the cap locating piece (21) include the positioning embedding seat of card base (211), positioning convex platform button foot (212) and positioning Deck button foot (213), the positioning embedding seat of card base (211) are formed in the forward and backward outer wall of the cap (2) and left outside with space state The top of wall, the position of the embedding seat of positioning card base (211) are corresponding with the positioning card base (151) and with positioning card base (151) card is matched, and the quantity of positioning convex platform button foot (212) has a pair and is formed in the top of the right side wall of cap (2), this is to fixed The position of position boss button foot (212) is corresponding with a pair of of positioning convex platform (152) and embedding with a pair of of positioning convex platform (152) Match, the quantity of positioning deck button foot (213) is one and is formed in the lower part of the cap right side wall extension board (222), should Positioning deck button foot (213) is matched with the positioning deck (153).